Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 75, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 25, 2021, 7:03 PM CDT for Hand County, Hyde County, South Dakota. It was in force for 42 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 25, 2021, 7:03 PM CDT (00:03 UTC)
- Expired
- Jul 25, 2021, 7:45 PM CDT
- In force
- 42 min
- Issued by
- NWS Aberdeen, SD
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Hand County, SD, Hyde County, SD
The radar
The Aberdeen radar (KABR), 105 km from the middle of the area, began a volume at 00:03 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 25, 7:07 PM CDT | HAIL 1.5 | 12 W Polo, SD |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 0.1 hours before the alert went out and 73 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1771 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 2015 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 380 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 31.3
The text
As transmitted.
374
WUUS53 KABR 260003
SVRABR
SDC059-069-260045-
/O.NEW.KABR.SV.W.0075.210726T0003Z-210726T0045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Aberdeen SD
703 PM CDT Sun Jul 25 2021
The National Weather Service in Aberdeen has issued a
* Severe Thunderstorm Warning for...
Northwestern Hand County in central South Dakota...
Northeastern Hyde County in central South Dakota...
* Until 745 PM CDT.
* At 703 PM CDT, a severe thunderstorm was located 11 miles west of
Polo, or 17 miles north of Highmore, moving east at 15 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will remain over mainly rural areas of
northwestern Hand and northeastern Hyde Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Aberdeen.
&&
LAT...LON 4471 9938 4481 9944 4484 9918 4467 9915
TIME...MOT...LOC 0003Z 276DEG 11KT 4476 9935
HAIL...1.25IN
WIND...60MPH
$$
Parkin1 follow-up statement
271
WWUS53 KABR 260026
SVSABR
Severe Weather Statement
National Weather Service Aberdeen SD
726 PM CDT Sun Jul 25 2021
SDC069-260035-
/O.CAN.KABR.SV.W.0075.000000T0000Z-210726T0045Z/
Hyde SD-
726 PM CDT Sun Jul 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HYDE COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4469 9928 4478 9930 4480 9917 4467 9915
TIME...MOT...LOC 0025Z 297DEG 17KT 4470 9921
$$
SDC059-260045-
/O.CON.KABR.SV.W.0075.000000T0000Z-210726T0045Z/
Hand SD-
726 PM CDT Sun Jul 25 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHWESTERN HAND COUNTY...
At 725 PM CDT, a severe thunderstorm was located 7 miles southwest of
Polo, or 16 miles northeast of Highmore, moving southeast at 20 mph.
HAZARD...Half dollar size hail.
SOURCE...Radar indicated. At 707 pm, ping pong ball size hail was
reported 12 miles west of Polo.
IMPACT...Damage to vehicles is expected.
This severe thunderstorm will remain over mainly rural areas of
northwestern Hand County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Aberdeen.
&&
LAT...LON 4469 9928 4478 9930 4480 9917 4467 9915
TIME...MOT...LOC 0025Z 297DEG 17KT 4470 9921
HAIL...1.25IN
WIND...<50MPH
$$
ParkinThe office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 7:30 PM CDT | Severe Thunderstorm Warning | ABR | Hand | 36 min |
| Jul 25, 8:11 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Spink | 49 min |
| Jul 25, 8:54 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington | 51 min |
| Jul 26, 3:41 AM CDT | Heat Advisory | ABR | Brown, Buffalo, Campbell, Corson, Dewey, Edmunds and 12 more | 15 hr |
| Jul 26, 3:41 AM CDT | Heat Advisory | ABR | Brown, Buffalo, Campbell, Clark, Codington, Corson and 18 more | 41 hr |
| Jul 26, 4:00 AM CDT | Special Weather Statement | ABR | Corson | 30 min |
| Jul 26, 4:05 AM CDT | Severe Thunderstorm Warning | ABR | Corson | 28 min |
| Jul 26, 7:12 AM CDT | Special Weather Statement | ABR | Day | 18 min |
| Jul 26, 8:35 AM CDT | Special Weather Statement | ABR | Walworth | 25 min |
| Jul 26, 9:03 AM CDT | Special Weather Statement | ABR | Walworth | 27 min |
| Jul 26, 9:43 AM CDT | Severe Thunderstorm Warning | ABR | Walworth | 32 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.